Track sander



June 26, 1923. EASQ'YB? R. A. LIGHT ET AL v TRACK SANDER Filed Oct. 2'7.1922 RALPH A. LIGHT AND'J'OSEPH W.,PRICE,

ATES

SIGNORS TO THE UNITED STATES METALLIC PACKING COMPANY, OF PHILADJEIPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

TRACK sannnn.

Application filed October 27,1922. Serial Itfil'o. 597,240.

To all whom it may concern:

Be it known that we, RALPH A. LIGHT and JOSEPH W. PRICE, Jr., citizensof the United States of America, and residents of Philadelphia, in thecounty of Philadelphia. in the State of Pennsylvania, have inventedcertain new and useful Improvements in Track Sanders, of which thefollowing is a true and exact description, reference being had to theaccompanying drawings, which form a part thereof.

Our invention relates to track sanders used in connection withlocomotives and has for its object to provide a sander of simple andefficient construction and in which the air blast nozzle or nozzlesprovided for lifting the sand out of the trap and delivering it to thedelivery passage are at the same time located in such a way as to actwith great efficiency on the sand and to be completely protected againstthe entry of sand into the nozzle or nozzles.

The nature of our improvement Will be best understood as described inconnection with the drawing which is a sectional elevation of ourimproved track sander and in which- 7 A indicates the casing making upthe body of the sander and having an opening B at its top through whichit is connected with an elevated sand box. Below this opening the casinghas formed in it a sand receiving bowl E and a bowl opening G separatedfrom the bowl by an upwardly extending wall portion C and connected withthe bowl portion by assage extending over the top of the wal C. eindicates the normal angle of rest of the sand in the bowl portion ofthe casing. H is an opening in the bottom of the bowl portion normallyclosed by screw plug I. J is a threaded opening formed throu h the topof the passage F and connectef, as shown, with two nozzle passages J andJ the nozzle passage J being directed toward the bowl portion of the'casing and the nozzle passage J bein directed toward the outlet passageG. is the air pipe leading to the opening J and in which, by preference,we place a valve casing L having a port L in connection with whichoperates an adjustable needle valve M. This valve is entirely distinctfrom the ordinary controlled valve by which air is admitted and cut oilfrom the pipe K adapted to receive sand and has for its function toregulate the ressure of air delivery through the pipe to the nozzles Jand J 1 In operation the sa'ndtrap has its bowl portion E normallyfilled with sand up to the level indicated at c. When it is desired todeliver sand to the track, air is turned on through the pipe K and a jetof air is delivered through the nozzle J directly against the sand inthe bowl with the result of picking up the sand and, through an eddyingaction, carrying it through the passage F and delivering it to theoutlet passage G. This action is improved and accelerated by providingthe secondair nozzle J 2 directed into the outlet passage G.

It is a marked feature of our improved construction that the air nozzlesare located in the passage F and entirely outside of the bowl portion inwhich the sand is normally retained. There is, consequently, noliability of the sand getting into the nozzles way.

sand is normally retained, a discharge opening separated from the bowlby an upward- 1 extending wall and a passage connecting tlie bowl anddischarge opening o er the wall, in combination with a blast nozzlelocated in the connecting passage above the normal sand level thereinand directed toward the bowl portion of the trap.

2. A track sander comprising a trapsand box and having a sand isnormally retained, a discharge opening separated from the bowl by anupwardly extending wall and a passage connecting the bowl and dischargeopening over the wall,in combination with a blast nozzle located in theconnecting passage above the normal sand level therein and directedtoward the bowl portion of the trap and a second blast nozzle alsolocated in the passage and directed toward the discharge opening.

3. A track sander comprising a trap and desire to secure by gravity froma bowl wherein the I :rn, or PHILADELPHIA, PENNSYLVANIA, As-- adapted toreceive sand by gravity from a sand box and having a bowl wherein thesand is normally retained, a discharge opening separated from the bowlby an upwardly extending wall and a passage connecting the bowl anddischarge opening over the wall, in combination with a blast nozzlelocated in the connecting passage above the normalsand level therein anddirected toward the bowl portion of the trap and an adjustable needlevalve controlling the flow of air to the nozzle.

RALPH A. LIGHT. JOS. W. PRICE, JR.

